The Horseracing Integrity and Safety Act's (HISA) drug control program has encountered some choppy waters since its launch on May 22, encapsulated by events surrounding the law's rules on intra-articular joint injections. At the end of last month, HISA CEO Lisa Lazarus explained that the Authority--the non-profit umbrella broadly overseeing implementation of the federal law--had temporarily suspended full enforcement of its rules surrounding intra-articular joint injections prior to workouts. Under HISA's rules as written, trainers are prohibited from giving their horse intra-articular joint injections within 14 days prior to the...